npr1                  package:MASS                  R Documentation

_U_S _N_a_v_a_l _P_e_t_r_o_l_e_u_m _R_e_s_e_r_v_e _N_o. _1 _d_a_t_a

_D_e_s_c_r_i_p_t_i_o_n:

     Data on the locations, porosity and permeability (a measure of oil
     flow) on 104 oil wells in the US Naval Petroleum Reserve No. 1 in
     California.

_U_s_a_g_e:

     data(npr1)

_F_o_r_m_a_t:

     This data frame contains the following columns:

     '_x, _y' x and y coordinates, in miles from an arbitrary origin

     '_p_e_r_m' permeability in milli-Darcies

     '_p_o_r' porosity (%)

_S_o_u_r_c_e:

     Maher, J.C., Carter, R.D. and Lantz, R.J. (1975) Petroleum geology
     of Naval Petroleum Reserve No. 1, Elk Hills, Kern County,
     California. _USGS Professional Paper_ *912*.

_R_e_f_e_r_e_n_c_e_s:

     Venables, W. N. and Ripley, B. D. (2002) _Modern Applied
     Statistics with S._ Fourth edition.  Springer.

